user/sven/linux.git/scripts/recordmcount.pl, branch v5.0.16

scripts/recordmcount.{c,pl}: support -ffunction-sections .text.* section names

2018-12-09T01:54:08Z

When building with -ffunction-sections, the compiler will place each function into its own ELF section, prefixed with ".text". For example, a simple test module with functions test_module_do_work() and test_module_wq_func(): % objdump --section-headers test_module.o | awk '/\.text/{print $2}' .text .text.test_module_do_work .text.test_module_wq_func .init.text .exit.text Adjust the recordmcount scripts to look for ".text" as a section name prefix. This will ensure that those functions will be included in the __mcount_loc relocations: % objdump --reloc --section __mcount_loc test_module.o OFFSET TYPE VALUE 0000000000000000 R_X86_64_64 .text.test_module_do_work 0000000000000008 R_X86_64_64 .text.test_module_wq_func 0000000000000010 R_X86_64_64 .init.text Link: http://lkml.kernel.org/r/1542745158-25392-2-git-send-email-joe.lawrence@redhat.com Signed-off-by: Joe Lawrence Signed-off-by: Steven Rostedt (VMware)

nds32/ftrace: Add RECORD_MCOUNT support

2018-09-04T06:45:18Z

Recognize NDS32 object files in recordmcount.pl. Signed-off-by: Zong Li Acked-by: Greentime Hu Signed-off-by: Greentime Hu

powerpc/kbuild: Use flags variables rather than overriding LD/CC/AS

2018-06-01T13:08:09Z

The powerpc toolchain can compile combinations of 32/64 bit and big/little endian, so it's convenient to consider, e.g., `CC -m64 -mbig-endian` To be the C compiler for the purpose of invoking it to build target artifacts. So overriding the CC variable to include these flags works for this purpose. Unfortunately that is not compatible with the way the proposed new Kconfig macro language will work. After previous patches in this series, these flags can be carefully passed in using flags instead. Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman

Merge tag 'riscv-for-linus-4.17-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux

2018-04-04T23:43:47Z

Pull RISC-V updates from Palmer Dabbelt: "This contains the new features we'd like to incorporate into the RISC-V port for 4.17. We might have a bit more stuff land later in the merge window, but I wanted to get this out earlier just so everyone can see where we currently stand. A short summary of the changes is: - We've added support for dynamic ftrace on RISC-V targets. - There have been a handful of cleanups to our atomic and locking routines. They now more closely match the released RISC-V memory model draft. - Our module loading support has been cleaned up and is now enabled by default, despite some limitations still existing. - A patch to define COMMANDLINE_FORCE instead of COMMANDLINE_OVERRIDE so the generic device tree code picks up handling all our command line stuff. There's more information in the merge commits for each patch set" * tag 'riscv-for-linus-4.17-mw0' of git://git.kernel.org/pub/scm/linux/kernel/git/palmer/riscv-linux: (21 commits) RISC-V: Rename CONFIG_CMDLINE_OVERRIDE to CONFIG_CMDLINE_FORCE RISC-V: Add definition of relocation types RISC-V: Enable module support in defconfig RISC-V: Support SUB32 relocation type in kernel module RISC-V: Support ADD32 relocation type in kernel module RISC-V: Support ALIGN relocation type in kernel module RISC-V: Support RVC_BRANCH/JUMP relocation type in kernel modulewq RISC-V: Support HI20/LO12_I/LO12_S relocation type in kernel module RISC-V: Support CALL relocation type in kernel module RISC-V: Support GOT_HI20/CALL_PLT relocation type in kernel module RISC-V: Add section of GOT.PLT for kernel module RISC-V: Add sections of PLT and GOT for kernel module riscv/atomic: Strengthen implementations with fences riscv/spinlock: Strengthen implementations with fences riscv/barrier: Define __smp_{store_release,load_acquire} riscv/ftrace: Add HAVE_FUNCTION_GRAPH_RET_ADDR_PTR support riscv/ftrace: Add DYNAMIC_FTRACE_WITH_REGS support riscv/ftrace: Add ARCH_SUPPORTS_FTRACE_OPS support riscv/ftrace: Add dynamic function graph tracer support riscv/ftrace: Add dynamic function tracer support ...

riscv/ftrace: Add RECORD_MCOUNT support

2018-04-03T02:59:10Z

Now recordmcount.pl recognizes RISC-V object files. For the mechanism to work, we have to disable the linker relaxation. Cc: Greentime Hu Signed-off-by: Alan Kao Signed-off-by: Palmer Dabbelt

recordmcount.pl: drop blackin and tile support

2018-03-26T13:56:12Z

These two architectures are getting removed, so we no longer need the special cases. Acked-by: Steven Rostedt (VMware) Signed-off-by: Arnd Bergmann

scripts: Switch to more portable Perl shebang

2017-05-14T02:20:44Z

The default NetBSD package manager is pkgsrc and it installs Perl along other third party programs under custom and configurable prefix. The default prefix for binary prebuilt packages is /usr/pkg, and the Perl executable lands in /usr/pkg/bin/perl. This change switches "/usr/bin/perl" to "/usr/bin/env perl" as it's the most portable solution that should work for almost everybody. Perl's executable is detected automatically. This change switches -w option passed to the executable with more modern "use warnings;" approach. There is no functional change to the default behavior. While there, drop "require 5" from scripts/namespace.pl (Perl from 1994?). Signed-off-by: Kamil Rytarowski Signed-off-by: Masahiro Yamada

ftrace: Allow for function tracing to record init functions on boot up

2017-03-25T00:51:49Z

Adding a hook into free_reserve_area() that informs ftrace that boot up init text is being free, lets ftrace safely remove those init functions from its records, which keeps ftrace from trying to modify text that no longer exists. Note, this still does not allow for tracing .init text of modules, as modules require different work for freeing its init code. Link: http://lkml.kernel.org/r/1488502497.7212.24.camel@linux.intel.com Cc: linux-mm@kvack.org Cc: Vlastimil Babka Cc: Mel Gorman Cc: Peter Zijlstra Requested-by: Todd Brandt Signed-off-by: Steven Rostedt (VMware)

scripts/spelling.txt: add "swith" pattern and fix typo instances

2017-02-28T02:43:46Z

Fix typos and add the following to the scripts/spelling.txt: swith||switch swithable||switchable swithed||switched swithing||switching While we are here, fix the "update" to "updates" in the touched hunk in drivers/net/wireless/marvell/mwifiex/wmm.c. Link: http://lkml.kernel.org/r/1481573103-11329-2-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

nmi_backtrace: generate one-line reports for idle cpus

2016-10-08T01:46:30Z

When doing an nmi backtrace of many cores, most of which are idle, the output is a little overwhelming and very uninformative. Suppress messages for cpus that are idling when they are interrupted and just emit one line, "NMI backtrace for N skipped: idling at pc 0xNNN". We do this by grouping all the cpuidle code together into a new .cpuidle.text section, and then checking the address of the interrupted PC to see if it lies within that section. This commit suitably tags x86 and tile idle routines, and only adds in the minimal framework for other architectures. Link: http://lkml.kernel.org/r/1472487169-14923-5-git-send-email-cmetcalf@mellanox.com Signed-off-by: Chris Metcalf Acked-by: Peter Zijlstra (Intel) Tested-by: Peter Zijlstra (Intel) Tested-by: Daniel Thompson [arm] Tested-by: Petr Mladek Cc: Aaron Tomlin Cc: Peter Zijlstra (Intel) Cc: "Rafael J. Wysocki" Cc: Russell King Cc: Thomas Gleixner Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds